M-Class (W164) Produced 2006-2011: ML280CDI, ML320CDI, ML420CDI, ML350, ML500, ML550

No hot air on drivers side..

Old Dec 12, 2017 | 05:21 PM
  #1  
Tmva's Avatar
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ML 420 CDI W164, 2007
No hot air on drivers side..

Hi all.
My ML has 2 zone climate
Have a problem with heat on drivers side. Directions flaps seem to work fine. So I'm thinking defekt cold/hot blending flaps or temp censor?
How to get to the blending actuator for the drivers side?
Hope you can help.
Best regards Thorsten
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Old Dec 13, 2017 | 05:43 AM
  #2  
Maj. Dundee's Avatar
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From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Is your veh. left hand or right hand drive?

Guessing at what the problem could be can be solved by having the codes stored in the AAC Control Module. Look at all the possibilities.
Attached Files
File Type: pdf
DTC Air Cond..pdf (61.8 KB, 1510 views)
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Old Dec 13, 2017 | 08:02 AM
  #3  
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ML 420 CDI W164, 2007
Thanks for the reply :-)
Lefthand drive.
I've had a full dianostic and no fault code on climate or anything related. Can I get live feed from tempcensor and where actuators are suuposed to be??
Best Thorsten
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Old Dec 13, 2017 | 09:17 AM
  #4  
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2002 ML 320 & 2006 ML500
There must be a code set in the AAC. Who did the full diagnostics and what scanner was used?
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Old Dec 14, 2017 | 05:24 AM
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ML 420 CDI W164, 2007
Local mecanic did the diagnostics, don't know the scanner.
Think I can get my hand on a delphi scanner will that do? And the code in AAC is that to make it do a diagnostic on the clima?
Best regards Thorsten
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